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Evaluation of Tensile Modulus of Carbon Nanotube Bundle Based Composite with Interface Using Finite Element Method

Carbon Nanotubes (CNTs) have remarkable mechanical, thermal and electrical properties. The properties of CNTs depend on atomic arrangement (how the sheets of graphite are rolled), the diameter and length of the tubes and morphology of nanostructure.

In this paper effective elastic properties of CNT based polymer composites are evaluated using a square Representative Volume Element (RVE) in finite element method (FEM). COMSOL Multiphysics 3.5 is used for making the models and doing simulations.

Tensile modulus of a Single CNT based polymer composites are evaluated analytically and validated by simulation technique. The effect of varying CNT diameter and length on elastic properties of CNT reinforced composites is estimated and analyzed. In every model an interface is used between matrix and CNT.